Software Engineer – AI/ML, LLMs & Agentic Systems

Calpion Inc.; Saint-Python; Sur place; EUR 50 000 - 70 000; Plein temps

Résumé du poste

A technology firm located in Hauts-de-France is looking for a Software Engineer specializing in AI/ML, Large Language Models, and agentic systems. The ideal candidate will have strong Python skills and experience with deploying AI systems. Responsibilities include designing scalable systems and collaborating with data scientists to develop ML/AI pipelines. The company offers a creative, innovative, and inclusive culture with opportunities for personal growth and development.

Prestations

Flexible work arrangements

Access to cutting-edge AI tools

Continuous learning culture

Qualifications

• 4+ years in Python software development, with strong understanding of asynchronous programming and API design.
• Solid experience deploying LLM applications using frameworks like LangChain, LlamaIndex, or Haystack.
• Experience designing autonomous agent systems, connecting LLMs with Python functions, tools, or APIs.

Responsabilités

• Design, develop, and deploy RAG systems integrating vector databases, embedding models, and custom retrievers.
• Collaborate with data scientists to design and deploy ML/AI pipelines leveraging AWS, Azure, or GCP cloud infrastructure.
• Implement prompt engineering and prompt-chaining techniques to optimize LLM behavior and reliability.

Connaissances

Python software development

Asynchronous programming

API design

Prompt engineering

Vector databases

ML/AI pipelines

Outils

LangChain

LlamaIndex

Django

FastAPI

PostgreSQL

MySQL

Description du poste

About Calpion Inc.

Calpion is an 18‑year‑old technology firm headquartered in Dallas that offers AI solutions, custom deep learning, enterprise application development, RPA, cloud services, Salesforce consulting, and automated medical billing services. We are SOC‑certified, HIPAA‑compliant, and partner with Microsoft, Amazon, SAP, HP, Worksoft, Microfocus, Tricentis, and UiPath.

Focus

Healthcare, Logistics, Supply Chain, Biotechnology, Hospitality, Manufacturing, and Airlines.

Life at Calpion

Calpion offers a vibrant, innovative, and inclusive culture that values personal growth, work‑life balance, and collaboration. We encourage creativity, problem‑solving, and continuous learning.

Job Title

Software Engineer – AI/ML, LLMs & Agentic Systems

Company

Calpion Software India Pvt. Ltd

Location

Bengaluru, India

Job Summary

We seek an AI/ML Software Engineer with experience designing and deploying LLM‑powered systems, RAG pipelines, and agentic AI architectures. The ideal candidate combines strong Python development skills with advanced knowledge of Large Language Models, LangChain, vector databases, prompt optimization, and multi‑agent orchestration frameworks.

Key Responsibilities

• Design, develop, and deploy RAG systems integrating vector databases, embedding models, and custom retrievers.
• Architect and fine‑tune custom LLMs using parameter‑efficient tuning, LoRA, or domain‑specific training.
• Create and manage agentic AI workflows powered by LangChain, CrewAI, or OpenDevin.
• Implement prompt engineering and prompt‑chaining techniques to optimize LLM behavior and reliability.
• Build and maintain scalable LangChain‑based applications that interact with databases, APIs, and business systems.
• Collaborate with data scientists to design and deploy ML/AI pipelines leveraging AWS, Azure, or GCP cloud infrastructure.
• Develop, test, and optimize APIs that integrate AI reasoning and autonomous decision‑making capabilities.
• Monitor and improve model performance, latency, and token efficiency using observability tools like LangFuse, Phoenix, or OpenDevin dashboards.
• Document architectural decisions, experiment metrics, and system flows for technical transparency.

Required Skills and Experience

• 4+ years in Python software development, with strong understanding of asynchronous programming and API design.
• Solid experience deploying LLM applications using frameworks like LangChain, LlamaIndex, or Haystack.
• Proficiency working with vector databases (FAISS, Pinecone, Weaviate, Milvus, Qdrant) and embedding models (OpenAI, sentence‑transformers, Cohere, HuggingFace).
• Experience designing autonomous agent systems, connecting LLMs with Python functions, tools, or APIs.
• Strong command of prompt engineering, including contextual grounding, role prompting, and few‑shot examples.
• Familiarity with RAG pipeline architecture (retriever, ranker, generator layering).
• Understanding of custom model fine‑tuning techniques (RLHF, LoRA, QLoRA, PEFT).
• Experience with cloud‑based model deployment (AWS SageMaker, Azure ML, Vertex AI).
• Working knowledge of AI observability, evaluation frameworks (LangFuse, Traceloop, Phoenix).

Preferred Qualifications

• Experience building autonomous agents using frameworks like LangGraph, CrewAI, OpenDevin, or AutoGPT.
• Experience deploying multi‑agent collaboration systems or tool‑using AI.
• Background in knowledge graph integration, context window optimization, and embedding search tuning.
• Contribution to open‑source AI/LLM projects.
• Strong understanding of data governance, AI ethics, and model interpretability.

Technical Environment

Languages: Python
Frameworks: LangChain, LlamaIndex, Django, FastAPI
Databases: PostgreSQL, MySQL, Pinecone, FAISS, Qdrant, Weaviate
Cloud: AWS (S3, Lambda, RDS, SageMaker), Azure, GCP
AI Stack: OpenAI, Anthropic Claude, Meta Llama, Mistral, HuggingFace Hub
Architecture: RAG, multi‑agent orchestration, microservices, serverless

What We Offer

• Opportunity to build next‑generation agentic AI systems used in real‑world enterprise settings.
• Collaborative environment focused on innovation in RAG, LLMs, and autonomous agents.
• Flexible work arrangements and continuous learning culture.
• Access to cutting‑edge compute environments and AI tools.

Our Culture & Values

• Agile: We thrive on change, adapting swiftly to new challenges.
• Collaborative: Together, we achieve greatness through teamwork and diverse perspectives.
• Innovative: We push boundaries, constantly exploring new ideas and solutions.
• Fun: Laughter and camaraderie make our workplace a joyous one.
• Inclusive: Diversity is our strength, ensuring every voice is heard and valued.
• Passionate: We approach every task with dedication and enthusiasm.

Join Us

Join Calpion and be part of a culture that values innovation, growth, and making an impact.